diff options
Diffstat (limited to 'drivers/st/ddr')
| -rw-r--r-- | drivers/st/ddr/stm32mp1_ram.c | 26 |
1 files changed, 15 insertions, 11 deletions
diff --git a/drivers/st/ddr/stm32mp1_ram.c b/drivers/st/ddr/stm32mp1_ram.c index 4ae55fcc7..b21c8949f 100644 --- a/drivers/st/ddr/stm32mp1_ram.c +++ b/drivers/st/ddr/stm32mp1_ram.c @@ -1,5 +1,5 @@ /* - * Copyright (C) 2018-2019, STMicroelectronics - All Rights Reserved + * Copyright (C) 2018-2020, STMicroelectronics - All Rights Reserved * * SPDX-License-Identifier: GPL-2.0+ OR BSD-3-Clause */ @@ -12,6 +12,7 @@ #include <arch_helpers.h> #include <common/debug.h> +#include <common/fdt_wrappers.h> #include <drivers/st/stm32mp1_ddr.h> #include <drivers/st/stm32mp1_ddr_helpers.h> #include <drivers/st/stm32mp1_ram.h> @@ -205,13 +206,13 @@ static int stm32mp1_ddr_setup(void) return -EINVAL; } - config.info.speed = fdt_read_uint32_default(node, "st,mem-speed", 0); - if (!config.info.speed) { + ret = fdt_read_uint32(fdt, node, "st,mem-speed", &config.info.speed); + if (ret < 0) { VERBOSE("%s: no st,mem-speed\n", __func__); return -EINVAL; } - config.info.size = fdt_read_uint32_default(node, "st,mem-size", 0); - if (!config.info.size) { + ret = fdt_read_uint32(fdt, node, "st,mem-size", &config.info.size); + if (ret < 0) { VERBOSE("%s: no st,mem-size\n", __func__); return -EINVAL; } @@ -223,10 +224,10 @@ static int stm32mp1_ddr_setup(void) INFO("RAM: %s\n", config.info.name); for (idx = 0; idx < ARRAY_SIZE(param); idx++) { - ret = fdt_read_uint32_array(node, param[idx].name, + ret = fdt_read_uint32_array(fdt, node, param[idx].name, + param[idx].size, (void *)((uintptr_t)&config + - param[idx].offset), - param[idx].size); + param[idx].offset)); VERBOSE("%s: %s[0x%x] = %d\n", __func__, param[idx].name, param[idx].size, ret); @@ -250,8 +251,9 @@ static int stm32mp1_ddr_setup(void) VERBOSE("%s : ram size(%x, %x)\n", __func__, (uint32_t)priv->info.base, (uint32_t)priv->info.size); - write_sctlr(read_sctlr() & ~SCTLR_C_BIT); - dcsw_op_all(DC_OP_CISW); + if (stm32mp_map_ddr_non_cacheable() != 0) { + panic(); + } uret = ddr_test_data_bus(); if (uret != 0U) { @@ -274,7 +276,9 @@ static int stm32mp1_ddr_setup(void) panic(); } - write_sctlr(read_sctlr() | SCTLR_C_BIT); + if (stm32mp_unmap_ddr() != 0) { + panic(); + } return 0; } |